Cited by 2,057Genetic Associations and EpidemiologyGenetic Mapping and Diversity in Plants and AnimalsGenetic and phenotypic traits in livestock

Genetic Power Calculator: design of linkage and association genetic mapping studies of complex traits

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Purcell, S., Cherny, S. S., Sham, P. C.·2003·Bioinformatics

Abstract

Summary: A website for performing power calculations for the design of linkage and association genetic mapping studies of complex traits. Availability: The package is made available athttp://statgen.iop.kcl.ac.uk/gpc/ Contact: s.purcell@iop.kcl.ac.uk * To whom correspondence should be addressed.

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Crossref · 10.1093/bioinformatics/19.1.149

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  • Given the sample size, the analysis had >90% power at α=2.5e-6 to detect any gene for which rare disruptive and damaging variants were present in 1% of schizophrenia cases, even if odds ratio was at least 3, and greater power for larger effects.

    “Given the sample size, our analysis would have >90% power (at α = 2.5 × 10−6) to detect any gene for which rare, disruptive and damaging variants were present in 1% of schizophrenia cases, even if such variants had only a relatively modest effect size15 (odds ratio of at least 3, i.e. about 2% penetrance), and still greater power if effect sizes were larger.”

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Authors
Purcell, S., Cherny, S. S., & Sham, P. C.
Affiliations
  • King's College London (GB)
  • Centre for Human Genetics (GB)
Venue
Bioinformatics
Published
2003-01-01
Volume
19
Issue
1
Pages
149-150
ISSN
  • 1367-4803 (ISSN-L)
  • 1367-4811
OpenAlex
W2126718294
Cited by
2,057
References
13
Citations by year
2026: 10 · 2025: 21 · 2024: 12 · 2023: 20 · 2022: 24 · 2021: 37 · 2020: 54 · 2019: 57 · 2018: 74 · 2017: 93 · 2016: 99 · 2015: 116 · 2014: 127 · 2013: 124 · 2012: 147
FWCI
19.45
Type
journal article
Language
en
Open access
Locations
  • Bioinformatics (publishedVersion)
  • PubMed (publishedVersion)
  • The HKU Scholars Hub (University of Hong Kong) (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
Funders
  • Wellcome Trust (12562)
  • National Institutes of Health
  • Medical Research Council (G9700821)
  • National Eye Institute (EY12562, R01EY012562)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
Keywords
power analysis, gene mapping, linkage analysis, association mapping, complex traits, research design, genetic association studies
MeSH terms
Chromosome Mapping, Gene Frequency, Genetic Markers, Genetic Linkage, Models, Genetic, Pedigree, Software, Models, Statistical, Linkage Disequilibrium, Sample Size, Quantitative Trait, Heritable, Genetic Predisposition to Disease, Internet

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